<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        li:first-child{
            color: green;
        }
    </style>
</head>
<body>
<ul>
    <li>bbbbb</li>
    <li>mmmmmm</li>
</ul>
</body>
</html>
